background image

MK -- Microphone Capsules

Which is the Best Capsule for ... ?

Only in rare cases can ”the” correct micro-
phone be chosen unequivocally. The recording
location, the positions of sound sources and
the microphone, the atmosphere of the music
or other program material and the desired
effect must all be considered. Any absolute
prescriptions would thus be of limited value at
best. How ever, we would like to offer some
ideas to guide the choice that must be made.

Our Recommendations

The most commonly used pattern for medium-
distance pickup is the cardioid (MK 4 or MK 4V).
However, there may be good reasons to make
a different choice. Some examples: 

– Greater directivity may be required, either for

the sake of a ”drier” recording or to sup-
press sound from adjacent instruments. In
this case we recommend the supercardioid
MK 41 (as long as no nearby sound source
or P.A. loudspeaker is directly behind the
microphone's rear lobe).

– For a broader pickup pattern, with very nat-

ural sound quality for sound arriving at the
sides of the microphone and more extended
low-frequency response, we recommend
the MK 21 wide cardioid. 

– For essentially perfect pickup of low-fre-

quency information and room sound, we
recommend the omnidirectional MK 2H or
MK 2S (for moderate miking distances).

– When using directional microphones with

very close placement, proximity effect must
be compensated with a bass rolloff. This is
especially true when miking instruments.
For voice, try the MK 4S or MK 4VXS. For
instruments the omnidirectional MK 2 may
be of interest (no proximity effect, low sen-
sitivity to ”popping” or solid-borne noise);
for grand piano, the BLM 03 C.

– For very distant miking and/or as an ”ambi-

ence” microphone, with essentially perfect
bass response: omni MK 3.

– For outdoor recording if directivity is not

required (e.g. close miking), the omni MK 2S
with windscreen W 5 or W 5 D will offer low
sensitivity to wind, ”popping” and handling
noise. 
If high directivity is required outdoors, the
MK 41 can be used with the W 5 D, W 20 R1
or WSR MS ”basket”-type windscreens with
built-in elastic suspension for mono or stereo.

Attaching a Capsule or An Active
Accessory

MK -- capsules are interchangeable and can
be screwed onto any CMC -- amplifier or
Active Accessory (see System Overview, page 2).
To avoid damaging the threads, please proceed
as follows:

Place the capsule against the front end of

the microphone amplifier.

Now turn the capsule first counter-clockwise
(not pressing the parts together) until you feel
a gentle ”click”:

You are then at the beginning of the thread,
and can attach the capsule or accessory to the
microphone amplifier with normal clockwise
rotation:

(The engraved markings on the capsule may
not always line up as shown with those on the
amplifier.) 

If you are using an Active Accessory, attach it to
the microphone amplifier in a similar man  ner. 

SCHOEPS

GmbH · Spitalstr. 20 · D-76227 Karlsruhe (Durlach) · Tel: +49 721 943 20-0 · Fax: +49 721 943 2050

www.schoeps.de · [email protected]

Capsule Selection

Capsules

9

Summary of Contents for CMC 3U

Page 1: ...ications 7 Notes on Electromagnetic Compatibility 7 Block Diagram 8 MK Microphone Capsules 9 Capsule Selection 9 Attaching a Capsule 9 Basic Characteristics of Transducers 10 Suggested Capsules for Sp...

Page 2: ...uator swivel low cut filter microphone amplifiers 20 capsules in all RC KC Active Tube special version MK DZC GVC KC Active Cable CUT Signal balanced unbalanced TR 200 KCg Active Table Stand RC Active...

Page 3: ...ly as if it were a miniature micro phone Colette Active Cables are often used to help conceal microphones for film and video production while Colette Active Extension Tubes have become a mainstay of c...

Page 4: ...3 or 5 is the response at the very lowest audio frequencies The standard version of the CMC 6 has a 12 dB octave rolloff below 20 Hz as a protection against infrasonics while the standard version of...

Page 5: ...connector or adapter is defective or wired in a non standard way such that one modulation lead of the micro phone is shorted to ground at DC while the powering is on If a microphone is connected to su...

Page 6: ...ut RS R R C C see note in the text concerning tolerances with XLR 5 stereo microphones Fig 2 To add phantom powering to a balanced grounded transformerless input capa citors must be inserted into the...

Page 7: ...suggestions can help to reduce the likelihood of picking up noise 1 Keep both the microphone and the cable away from sources of interference such as monitors digital equipment computers RF emitters m...

Page 8: ...or pin 3 of the XLR input Given the permitted tolerances this voltage should be between 44 and 52 VDC for P48 and between 11 and 13 VDC for P12 Then measure the short circuit current between ground pi...

Page 9: ...specially true when miking instruments For voice try the MK 4S or MK 4VXS For instruments the omnidirectional MK 2 may be of interest no proximity effect low sen sitivity to popping or solid borne noi...

Page 10: ...ithout exception are single diaphragm electrostatic trans ducers They fall into two general categories pressure transducers and pressure gradient transducers Many of our capsules combine the two princ...

Page 11: ...5 D vocalist microphone CMH 64 cardioid Studio MK 4 MK 4V cardioids MK 22 Open Cardioid with pop filter PR 120 S PR 120 SV All instr incl percussion MK 4 cardioid to pick up room sound as well especia...

Page 12: ...spect to the sound source even though they are omnidirectional With the microphone amplifier CMC 6xt the frequency range of these capsules can be extended to 40 kHz 10 0dB 10 20 10 0dB 10 20 reverbera...

Page 13: ...dary layer capsules hemispheric directional pattern no coloration of off axis sound Suggested applications Music orchestra including pit orches tra on stage speech BLM 03C Round table discussions Note...

Page 14: ...mpromise between omni good low frequency response and cardioid consistent directional pattern at all frequencies Suggested applications MK 21 music orchestras spot micro phone vocals speech MK 21H whe...

Page 15: ...le for music and speech highly consistent polar response 0 axis is at the side of the capsule marked by a red dot Note Though not specifically designed for such use the MK 4V capsule can also be used...

Page 16: ...consistent polar response 0 axis is at the tip of the capsule Note Though not specifically designed for such use the MK 41V capsule can also be used on the RC Active Tube or the variable angle joint...

Page 17: ...out proximity effect or undue sensitivity to wind or solid borne sound slightly brighter than the MK 2H omni or MK 4 cardioid Intermediate switch positions are mechanically possible but are not reprod...

Page 18: ...kup ca 50 cm 20 MK 40 for close pickup ca 50 cm 20 high frequency emphasis for better speech intelligibility in reveberant venues e g churches MK 4VXS for extremely close pickup under 10 cm less than...

Page 19: ...K 41S supercardioid for close pickup under 50 cm considerable low frequency attenuation compensates for proximity effect suggested application speech in a loud environment Capsules 19 MK 4A for extrem...

Page 20: ...close pickup 3 mV Pa 29 dB 18 dB 76 dB 144 dB MK 4VXS cardioid close pickup 10 mV Pa 24 dB 14 dB 80 dB 134 dB MK 41S supercardioid 80 Hz 20 kHz 13 mV Pa 24 dB 15 dB 79 dB 132 dB Specifications for Com...

Page 21: ...y or dusty environments in order to avoid problems of the kind described above Possible Problems Wind Noise and Polar Pattern Noise problems may be a consideration when choosing a microphone pattern d...

Page 22: ...professional equipment is still designed primarily for use with dynamic micro phones or with earlier less sensitive condenser microphones If an input sensitivity control is available it should be set...

Page 23: ...sending your defective product for repair please contact your local dealer or dis tributor for instructions In exceptional cases you can by prior arrangement with SCHOEPS send the product directly to...

Page 24: ...e without notice Not responsible for errors or omissions 131203 Technik Schall SCHOEPS GmbH Spitalstrasse 20 D 76227 Karlsruhe Durlach Germany Tel 49 721 943 20 0 Fax 49 721 943 2050 www schoeps de ma...

Reviews: